1 JPC 3-[(2,4-dichlorobenzoyl)(isopropyl)amino]-5-phenylthiophene-2-carboxylic acid 1.000 2 IPC 3-[isopropyl(4-methylbenzoyl)amino]-5-phenylthiophene-2-carboxylic acid 0.897 3 NN3 3-{isopropyl[(trans-4-methylcyclohexyl)carbonyl]amino}-5-phenylthiophene-2-carboxylic acid 0.897